Examine source code of When2Meet Analyser

{
  "manifest_version": 2,
  "name": "When2Meet Viewer",
  "version": "1.0",
  "description": "View, filter, sort, and export when2meet availability data",
  "permissions": [
    "activeTab"
  ],
  "icons": {
    "48": "icons/icon_48.png",
    "96": "icons/icon_96.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "When2Meet Viewer",
    "default_icon": {
      "16": "icons/icon_16.png",
      "32": "icons/icon_32.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.when2meet.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "when2meet-viewer@nschuck.local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}